// const word = ['A', 'B', 'C']
// const w: typeof word = ['A']
// console.log(typeof word) //object

// const word = ['A', 'B', 'C'] as const
// const w: typeof word = ['A']
// 报错
// Type '["A"]' is missing the following properties from type 'readonly ["A", "B", "C"]': 1, 2

export {}

